| F.h. Ayer Manufacturing Company | Other Services (except Public Administration) | $605,108 | $611,562 | 21 | <$5M |  AI Deep Dive |
| South Suburban Pads | Health Care and Social Assistance | $243,508 | $64,656 | 38 | N/A | AI Deep Dive |
| Dlm School Bus Line, Inc. | Transportation and Warehousing | $160,000 | $161,677 | 42 | $16.1M | AI Deep Dive |
| K & S Tire Recycling Inc. | Wholesale Trade | $157,677 | $159,433 | 50 | $15.3M | AI Deep Dive |
| K & S Tire Recycling INC | Wholesale Trade | $157,500 | $159,134 | 25 | $7.7M | AI Deep Dive |
| Sanchez Roofing and Construction INC | Construction | $112,819 | $114,135 | 33 | $10.9M | AI Deep Dive |
| Th Cropping, INC | Manufacturing | $103,717 | $104,607 | 9 | <$5M | AI Deep Dive |
| Smp Automotive Products, Inc. | Retail Trade | $103,709 | $104,812 | 13 | <$5M | AI Deep Dive |
| Smp Automotive Products, Inc. | Retail Trade | $94,290 | $94,919 | 12 | <$5M | AI Deep Dive |
| Harold Colbert Jones Memorial Comm Cent | Health Care and Social Assistance | $93,767 | $94,257 | 25 | N/A | AI Deep Dive |
| Werning Maintenance Corp | Administrative and Support and Waste Management | $76,440 | $77,453 | 22 | <$5M | AI Deep Dive |
| Chicago Heights Animal Hospital Ltd. | Professional, Scientific, and Technical Services | $62,712 | $63,492 | 16 | <$5M | AI Deep Dive |
| Dr. Marshall J. Shikami, D.d.s., P.c. | Health Care and Social Assistance | $61,062 | $61,691 | 5 | <$5M | AI Deep Dive |
| Dr. Marshall J. Shikami DDS PC | Health Care and Social Assistance | $61,062 | $61,564 | 5 | <$5M | AI Deep Dive |
| Hgdc Learning Academy INC | Health Care and Social Assistance | $52,342 | $53,086 | 10 | <$5M | AI Deep Dive |
| Boyd A. Jarrell & Co., Inc. | Real Estate and Rental and Leasing | $52,256 | $52,948 | 6 | <$5M | AI Deep Dive |
| Complete Construction Resources Inc. | Construction | $51,762 | $52,029 | 4 | <$5M | AI Deep Dive |
| Complete Construction Resources Inc. | Construction | $49,663 | $49,159 | 3 | <$5M | AI Deep Dive |
| Hgdc Learning Academy INC | Educational Services | $49,070 | $49,377 | 10 | <$5M | AI Deep Dive |
| Marconi Baking Company | Manufacturing | $47,065 | $47,623 | 7 | <$5M | AI Deep Dive |
| Kerr-Parzygnot Funeral Home LLC | Other Services (except Public Administration) | $46,705 | $47,259 | 3 | <$5M | AI Deep Dive |
| Qualident INC | Unknown | $39,387 | $39,744 | 5 | N/A | AI Deep Dive |
| Qualident Inc. | Manufacturing | $39,387 | $39,615 | 5 | <$5M | AI Deep Dive |
| Marconi Baking Company | Manufacturing | $37,925 | $38,383 | 8 | <$5M | AI Deep Dive |
| Cornerstone Unlimited LLC | Transportation and Warehousing | $35,416 | $35,239 | 1 | <$5M | AI Deep Dive |